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annotate c/regexParser/createRegexParser.cc @ 103:4ad2a75dec4a impl-bitvector

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fix if statement in descendTreeNode.cc
author Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
date Tue, 17 Nov 2015 19:37:29 +0900
parents 1e5b56e8263b
children 3eb3cb5d581f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1d9bbf922bb6 add createRegexTree.cc
Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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1 #include <stdlib.h>
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2 #include <stdio.h>
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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3 #include "regexParser.h"
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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4
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5 NodePtr createNode(RegexInfoPtr,unsigned char,NodePtr,NodePtr);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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6 NodePtr charClass(RegexInfoPtr);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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7 NodePtr group(RegexInfoPtr);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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8 void token(RegexInfoPtr);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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9 NodePtr regexAtom(RegexInfoPtr);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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10 NodePtr regex(RegexInfoPtr);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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11
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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12 /**
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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13 * Create a node of regex parse tree.
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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14 * tokenType
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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15 * regexPosition(state)
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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16 * stateTransitionTable
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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17 */
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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18 NodePtr createNode(RegexInfoPtr ri,unsigned char character, NodePtr left, NodePtr right) {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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19 NodePtr n = (NodePtr)malloc(sizeof(Node));
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20 n->tokenType = ri->tokenType;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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21 n->self = n;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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22 n->Value.character = character;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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23 n->left = left;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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24 n->right = right;
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25
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26 if (ri->tokenType == '*') {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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27 n->left->parent = n->self;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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28 } else if (ri->tokenType != 'a') {
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29 n->right = right;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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30 n->left->parent = n->right->parent = n->self;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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31 }
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32
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33 if (ri->tokenType == 'a') {
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34 n->nodeNumber = ri->nodeNumber;
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35 ri->nodeNumber++;
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36 ri->tokenType = 0;
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37 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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38 return n;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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39 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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40
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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41 // <charClass> ::= '['<literal>'-'<literal>']'
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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42 NodePtr charClass(RegexInfoPtr ri) {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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43 NodePtr n = (NodePtr)malloc(sizeof(Node));
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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44 unsigned char startChar = ri->ptr[0];
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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45 while (ri->ptr[0] == '-') {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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46 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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47 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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48 unsigned char endChar = ri->ptr[0];
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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49 unsigned char *charTable = (unsigned char*)malloc(sizeof(char)*256);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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50
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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51 return n;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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52 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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53
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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54 // <literal> ::= [a-z][A-Z][0-9]
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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55 NodePtr literal(RegexInfoPtr ri) {
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masa
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56 unsigned char *top = ri->ptr;
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57 NodePtr n = createNode(ri,ri->ptr[0],0,0);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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58 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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59 return n;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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60 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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61
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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62 // <group> ::= '('<regex>')'
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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63 NodePtr group(RegexInfoPtr ri) {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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64 return regex(ri);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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65 }
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66
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67
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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68
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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69 void token(RegexInfoPtr ri) {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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70 while (ri->ptr[0] != '\0') {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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71 if (ri->ptr[0] == '('){
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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72 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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73 ri->tokenType = '(';
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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74 ri->tokenValue = 0;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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75 if (ri->ptr[1] == ')') {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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76 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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77 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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78 return;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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79 } else if (ri->ptr[0] == ')') {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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80 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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81 ri->tokenType = ')';
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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82 ri->tokenValue = ri->ptr[0];
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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83 return;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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84 } else if (ri->ptr[0] == '[') {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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85 ri->ptr++;
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parents:
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86 ri->tokenType = '[';
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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87 ri->tokenValue = ri->ptr[0];
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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88 if (ri->ptr[1] == ']') {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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89 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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90 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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91 return;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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92 } else if (ri->ptr[0] == '|'){
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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93 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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94 ri->tokenType = '|';
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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95 ri->tokenValue = 0;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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96 return;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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97 } else if (ri->ptr[0] == '*'){
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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98 ri->ptr++;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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99 ri->tokenType = '*';
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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100 ri->tokenValue = 0;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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101 return;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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102 } else if (ri->ptr[0] == '\\'){
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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103 // need more proccesing
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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104 /*
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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105 \277
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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106 \0xa5
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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107 \[
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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108 \\
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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109 \utf-8 etc...
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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110 */
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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111 } else {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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112 ri->tokenType = 'a';
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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113 ri->tokenValue = ri->ptr[0];
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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114 return;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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115 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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116 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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117 ri->tokenType = 0;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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118 ri->tokenValue = 0;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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119 return;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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120 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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121
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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122 // <regexAtom> ::= <literal>|<charClass>|<group>
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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123 NodePtr regexAtom(RegexInfoPtr ri) {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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124
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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125 token(ri);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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126 NodePtr n = NULL;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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127 if (ri->tokenType == 'a') n = literal(ri);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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128 else if (ri->tokenType == '[') n = charClass(ri);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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129 else if (ri->tokenType == '(') n = group(ri);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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130
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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131 return n;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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132 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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133
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
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134 // <regex> ::= <regexAtom>|<regexAtom>'*'|<regexAtom>'|'<regex>|<regexAtom><regex>
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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135 NodePtr regex(RegexInfoPtr ri) {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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136 NodePtr n = regexAtom(ri);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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137 while (ri->ptr[0]) {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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138 token(ri);
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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139 if (ri->tokenType == '*') {
89
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 87
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140 n = createNode(ri,'*',n,0);
82
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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141 } else if (ri->tokenType == '|') {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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142 NodePtr n1 = regex(ri);
89
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 87
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143 n = createNode(ri,'|',n,n1);
82
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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144 } else if (ri->tokenType == ')') {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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145 return n;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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146 } else {
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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147 NodePtr n1 = regex(ri);
89
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents: 87
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148 n = createNode(ri,'+',n,n1);
82
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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149 }
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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150 } return n;
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Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
parents:
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151 }